Archive for December, 2012

Atomikos maven repository now open to customers only

Saturday, December 15th, 2012

We’ve restricted access to (our maven repository) to customers only, so they can have easy and timely access to bug fixes, maintenance releases and full feature releases.

If you’re not a customer then you have two options:

In the near future we plan to distribute TransactionsEssentials exclusively via the central maven repo.

The “ports and adapters” architecture (aka “hexagonal architecture”)

Saturday, December 15th, 2012

Atomikos is designed along the ports and adapters/hexagonal architecture as described here by Alistair Cockburn.

Among other things, this means that it is relatively easy to:

  • Implement new transaction APIs / standards / models
  • Add new types of two-phase commit resources

Examples of things we’ve been able to realize thanks to this:

  • JTA (port) / XA (adapter)
  • TCC (port/adapter)
  • RMI (port/adapter)
  • WS-AT (port/adapter)
  • CORBA’s OTS (port/adapter)
  • TaaS - Transactions for REST (port/adapter)

The port and adapter model is also an important concept in the new book Implementing Domain-Driven Design. Our domain is 2-phase commit. Our adapter is our Participant model. Our ports are all the ways you can interact with our core system.